From 3e540a3ca3c14df3b5aa8a6aa0c1e4a8b608d170 Mon Sep 17 00:00:00 2001
From: Ross Thompson <ross1728@gmail.com>
Date: Fri, 2 Sep 2022 19:58:41 -0500
Subject: [PATCH] Possible fix to AHB burst eviction bug.  If HREADY went low
 during a burst seq the next data phase would only last 1 cycle.

---
 pipelined/src/lsu/lsu.sv | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pipelined/src/lsu/lsu.sv b/pipelined/src/lsu/lsu.sv
index 6e83175b..4ead5b0f 100644
--- a/pipelined/src/lsu/lsu.sv
+++ b/pipelined/src/lsu/lsu.sv
@@ -274,7 +274,7 @@ module lsu (
       mux2 #(`XLEN) LSUHWDATAMux(.d0(ReadDataWordM[`XLEN-1:0]), .d1(LSUWriteDataM[`XLEN-1:0]),
         .s(SelUncachedAdr), .y(LSUHWDATA_noDELAY));
 
-      flop #(`XLEN) wdreg(clk, LSUHWDATA_noDELAY, LSUHWDATA); // delay HWDATA by 1 cycle per spec; *** assumes AHBW = XLEN
+      flopen #(`XLEN) wdreg(clk, LSUHREADY, LSUHWDATA_noDELAY, LSUHWDATA); // delay HWDATA by 1 cycle per spec; *** assumes AHBW = XLEN
 
       // *** bummer need a second byte mask for bus as it is XLEN rather than LLEN.
       // probably can merge by muxing LSUPAdrM's LLEN/8-1 index bit based on HTRANS being != 0.